Spinning or twisting spindle with a dead spindle shank



March 21, i967 J. J. KEYSER SPINNING OR TWISTING SPINDLE WITH A DEAD SPINDLE SHANK 2 Sheets-Sheet 1 Filed May 3, 1965 7l 2 @Am ALJ m 3 J. J. KEYSER March 2l, i967 SPINNING OR TWISTING SPINDLE WITH A DEAD SPINDLE SHANK 2 Sheets-Sheet 2 Filed May 5, 1965 l United States Patent tltice 3,309,860 Patented Mar. 21, 1967 3,309,860 SPNNING R TWISTING SPINDLE WITH A DEAD SPNDLE SHANK Johann Jacob Keyser, Grabenallee 16, Aarau, Switzerland Filed May 3, 1965, Ser. No. 452,612 7 Claims. (Cl. 57-136) The present invention relates to a spinning or twisting spindle with a dead spindle shank which has journalled thereon two rotors journalled independently of each other for supporting the lower and upper spindle sleeve end, in which said dead spindle shank is composed of two independent shank sections which are independently of each other held in coaxial arrangement with regard to each other. Each of said shank sections has journalled thereon a rotor while that rotor which supports the lower sleeve end is adapted to be driven. Y

An arrangement of this general type is disclosed in my U.S. Patent No. 3,120,094, issued Feb. 4, 1964. The arrangement disclosed in my said patent represents a considerable simplification of the journalling of the two shank sections, and the connection of the two rotors respectively supporting the lower and upper spindle sleeve ends is effected solely by the spindle sleeve itself. The arrangement disclosed in my said patent has its driving means located in a plane above the spindle rail as is known with various drives for spinning or twisting spindles.

On the other hand, however, drives are known which are operatively connected t0 the spindle sleeve while being located below the spindle rail box so that the driving means are more or less protected. These known arrangements, however, concern a spindle of an entirely different construction which lack the above outlined feature of the division of the shank into two independent shank sections.

It is an object of the present invention to provide a spinning or twisting spindle with a dead spindle shank having two independent shank sections of the general type disclosed in my Patent No. 3,120,094, which will permit the provision of a drive below the spindle rail.

It is another object of this invention to provide a spinning or twisting spindle with a dead spindle shank as set forth in the preceding paragraph, in which the rotor will permit the employment of various driving types which could be employed above the spindle rail with great difficulties only.

These and other objects and advantages of the invention will appear more clearly from the following specication in connection with the accompanying drawhigs, in which:

FIG. l illustrates a spinning or twisting spindle according to the present invention.

FIG. 2 represents a modified spinning or twisting spindle, which differs from that of FIG. l primarily in that the lower end of the holding tube, in which the lower rotor is journalled, is inserted into the bottom p0rtion ofthe spindle rail designed as a spindle rail box while the upper end of said holding tube extends through the lid of the spindle rail box.

' FIG. 3 is a section through still another modification of theinvention, in which the holding -tube consists of two ytube sections one of which is inserted into the bottom portion of the spindle rail box whereas the other holding -tube section is inserted into the lid of the spindle rail box.

The spindle according to the present invention is characterized primarily in that the rotor supporting the lower spindle sleeve end has its outer circumference rotatably journalled. Thus, this rotor surrounds the inner shank section which carries the upper rotor, whereas the second shank section which previously occupied this position is now located entirely outwardly and surrounds the lower rotor. This arrangement makes it possible to connect the drive -to this lower rotor below the spindle rail.

To this end, according to a irst embodiment of the present invention, the lower rotor is journalled in aholding tube connected to the spindle rail and protrudes from said tube in upward and downward direction. The said lower rotor has that end `thereof which is located below said holding tube provided with a driving whorl.

According -to a second embodiment of the present invention, the lower rotor is journalled in a holding tube the lower end of which is inserted into the bottom portion of a box-shaped spindle rail, Vwhile :the 'upper end of said rotor extends through the lid of said box-shaped spindle rail, said holding tube being provided with a recess located inside the spindle rail box and intended for the passage of a driving pinion.

A further embodiment of the present invention represents a simplification of the arrangement set forth inthe preceding paragraph. According to this third modification of the invention, the holding tube is composed of two tube sections one of which is inserted into the bottom portion of the spindle rail whereas the other tube section is inserted into the lid or cover of the spindle rail. This arrangement is possible when the spindle rail is lsutliciently thick to permit the provision of `two vertically spaced antifriction bearings. The arrangement is even more favorable when a spindle rail box is provided in the bottom and ceiling portion in which instance one antifriction bearing each may 'be mounted in said bottom and ceiling for journalling the rotor. in this way the holding tube can entirely be replaced by the walls of the spindle rail box.

According `to a further development of the present invention, the inner dead shank section may be composed of two shank sections which telescopically interengage each other and which are adapted to be held stationary With regard to each other in their respective adjusted positions. Such an arrangement is particularly advantageous when the driving means have a length in excess of the ordinary length and when the 4spindle sleeves have such a small diameter that the inner dead shank section would have to be designed with a still smaller diameter which, however, is not admissible for reasons of stability. The telescopic subdivision results in a st-iifening of that shank section which in its lower portion with larger diameter overlaps the upper portion with smaller diameter over such a length that the upper portion can be made thinner. The telescopic interengagement of the shank sections furthermore yields the possibility, for instance by the provision of elastic rings `between the two shank sections, to aid or favor a certain adjustment of the upper end of the bobbin sleeve toward the uaxis of rotation of the spindle. Furthermore, a longitudinal adjustment of the inner dead shank section with regard to certain sleeve lengths may -be effected.

Referring now to the drawings in detail, and PIG. l thereof in particular, the arrangement shown thereincomprises a spindle rail 1 having connected thereto a spinning or twisting spindle carrying a spinning sleeve V2 having its upper and lower ends respectively supported by two -rotors journalled independently of each other. The dead spindle shank comprises -two independent shank sections which `are independently of each other held coaxially with regard to each other. One of the rotors is journalled on one of said shank sections, whereas the other rotor is journalled on the other one of said shank sections. More specically, with regard to FIG. 1, the lower end of spinning sleeve 2 is supported by sleeve seat member 11 and, by means of a plurality of sleeve couplings 27 distributed over the circumference of sleeve seat member 11, is secured in its position. The upper end of spinning sleeve 2 rests on a rotor 21 which is arranged at the upper end of the inner dead shank 18. Rotor 21 has an axially inwardly directed central pin 22 with a head 23. Pin 22 extends through a bore 24 of a bushing4 2S mounted on the upper end of shank 18 so that rotor 21 will be prevented from being pulled olf. Similar toy the arrangement in my above-mention Patent No. 3,120,094, there is provided a socket-like supporting plate 26 at the bottom portion of bushing 25.

Sleeve seat member 11 which supports the lower end f spinning sleeve 2 represents the driven part which is. connected with the driving whorl 7. As connecting member between sleeve seat member 11 and driving whorl 7, according to the present invention, there is provided a rotor 8 rotatably journalled at its outer circumferential surface. Sleeve seat member 11 is rmly connected to the upper end of rotor 8 which has that portion thereof that is located below the spindle rail 1 provided with the driving whorl 7. The upper end face for driving whorl 7 engages a shoulder of rotor 8, whereas the lower end face of whorl 7 is connected to rotor 8 by means of nuts 9 threaded onto the respective adjacent threaded end of rotor 8. In this way a rm connection is established between the sleeve seat member 11 and the driving whori 7 through the intervention of rotor 8. The desirable arrangement of whorl 7 permits an easy exchange thereof if whorls of different sizes are desired. In this way, according to the specic requirement, a driving whorl with smaller or larger diameter can be connected to rotor 8 so that spindle sleeve 2 may be rotated at a lower or higher speed.

Rotor 8 with driving whorl 7 and sleeve seat member- 11 thus corresponds to the rotor-whorl arrangement of my above mentioned Patent No. 3,120,094. However, in contrast thereto, according to the present invention, rotor 8 is rotatably journalled on its outer circumferential surface. To this end, two antifriction bea-rings are provided which are arranged on the inside of a holding tube 6. As will be seen from the drawing, the upper end of rotor 8 which carries sleeve seat member 11 extends through the upper antifriction bearing 10 whereas the lower end of rotor 8 extends through the lower antifriction Abearing 10. Holding tube 6 is provided with a shoulder 6a by means of which it rests on a spindle rail 1. At the bottom side of spindle rail 1 there is provided a washer 13 and a nut 14 for connecting holding tube 6 to spindle ra'il 1. That end of holding tube 6 which extends below nut 14 is provided with a thread simultaneously serving as brake counter nut 5 having mounted thereon a brake nut 4 with brake lever 3, said brake nut 4 being turnable on said threaded lower end of tube 6.

When comparing the arrangement according to FIG. 1 with the arrangement of FIGS. 4 and 5 of my abovementioned Patent No. 3,120,094, it will be noted that hollow shank 6 of the said patent corresponds to the holding tube 6 of FIG. l in the present application but that holding tube 6 has a larger diameter in order to permit journalling rotor 8, which carries sleeve seat member 11, in the interior of the holding tube 6, whereas according to 4my said patent, rotor 11 is journalled on the outer circumferential surface of hollow shank 6. The

Vinverse arrangement of the elements according to the present invention which have changed their location from the inside toward the outside over the arrangement in my said patent, permits the mounting of the driving whorl 7 and of the brake nut 4 below the spindle rail 1. This in turn results in a gain in space for the height of the spindle above the spindle rail 1. Shank rod 18 carrying plication in the holding tube 6 and shank rod 18 which are held coaxially independently of each other. Rod 18 has with regard to rotor 8 suicient play to permit the upper end of spinning sleeve 2 to adjust itself in con- .formity with the axis of rotation of the spindle. Sleeve seat member 11 arranged at the upper end of rotor 8 has connected thereto an inverted cup-shaped extension 12 which extends over or overlaps the upper end of the hold- :ing -tube 6 which protrudes yabove spindle rail 1 so that the antifriction bearings 10 are protected against the entry of soil or other impurications. Furthermore, the cupshaped extension 12 may be used as a member upon which the underwinding thread layers at the end of a spinning operation preceding the withdrawal of a cop may be wound.

Referring now to FIG. 2, the spindle arrangement shown therein corresponds substantially to that of FIG. l. However, according to FIG. 2, the spindle is arranged in -a spindle rail 1a which is designed in form of a box. Rotor 8 connected to sleeve seat member 11 is in this instance journalled in a holding tube 6 the lower end of which is inserted into the bottom 1 of the spindle rail box 1a. The upper lend of holding tube 6 extends through the cover 1" of spindle rail 1a and thus corresponds substantially to the holding tube 6 of FIG. 1.

As will be seen from the drawing, rotor 8' is also in this instance journalled inside holding tube 6 by means of two antifriction bearings 10, the bearings being provided .in bottom 1 and in cover 1" of spindle rail 1a. As will ibe seen from the drawing, rotor 8 is driven through the intervention of a screw wheel-worm drive. The outer surface of rotor 8 forms a worm 49 meshing with a screw wheel 50 which is mounted on a drive shaft 51 .arranged in spindle rail box 1a. In order to permit the engagement of worm 49 with screw wheel 50, holding tube 6 is provided with a slot 52 through which extends wheel 50. In this way rotor 8', similar to rotor 8 of FIG. l, can be driven from below cover 1' of spindle rail box 1a so that spinning sleeve 2 can be rotated through the intervention of sleeve seat member 11 connected to rotor 8 and through rotor 21 mounted on shank rod 18. Rod 18 is connected to adjusting rail 53 in the manner `described in connection with FIG. l.

FIG. 3 illustrates a further embodiment of a spinning or twisting spindle according to the invention which is further simplied over the embodiments of FIGS. l and 2. According -to FIG. 3, rotor 8 with sleeve seat member 11 arranged at the upper end thereof s rotatably journalled by means of antifriction bearings 10 similar to the arrangement of FIG. 2. In this instance, however, sleeve seat member 11 engages spindle sleeve 2 at its outer circumferential surface whereas -according to FIG. 2 sleeve seat member 11 engages spinning sleeve 2 from the inside. The two antifriction bearings 10 in FIG. 3 are similar to the embodiment-of FIG. 2, arranged in the bottom 1' and lid 1" of spindle rail box 1a. However, in this instance and in contrast to FIG. 2, the holding tube does not extend any longer from bottom 1 to and above cover 1, but instead only short sections 6" and 6a" of the holding tube remain which practically form the outer race rings for the antifriction bearings and are located in bottom 1 and cover 1 of the spindle rail box 1a.

That portion of holding tube 6 in FIG. 2 which extends above cover 1" of spindle rail box 1a has in FIG. 3 its counter part in sleeve 41 which is overlapped by the inverted cup-shaped extension 12 connected to sleeve seat member 11'. The outer circumferential surface of rotor 8" in FIG. 3 serves as whorl surface and is adapted to be rotated through the intervention of a belt 42 and drive disc 43 which is connected to a drive shaft 51 in spindle rail box 1. In this way also spindle 2 is rotated through the intervention of sleeve seat member 11', whereas rotor 21' located at the upper end of rod 18 is turned by spindle sleeve 2.

According to FIG. 3, shank rod 18 is composed of two telescopically interengaging shank sections which are adjustable and arrestable relative to each other. Upper section 18 of rod 18 is of substantially the same design as shown in FIGS. l and 2. However, the lower section of rod 18 is inserted into a tubular member 18 having its lower end connected to adjusting rail 53. Upper section 18 and lower section 18" are connected through the intervention of a disc-shaped spring ring 44 which is inv serted at the upper end of lower section 18'. In addition thereto, the connection between sections 18 and 18 is effected by elastic rings 4S engaging grooves .at the lower end of upper section 18'. Rings 45 also engage grooves 46 of the lower section 18". The telescopic arrangement 0f shank sections 18 and 13 makes it possible to design the upper section 18 relatively thin inasmuch as it is supported by the lower section 18". This arrangement also makes it possible to adjust the length of shank 18 in conformity with different sleeve lengths and permits the adjustment of the upper end of spinning sleeve 2 in conformity with the axis of rotation of the spindle.

For the sake of completeness it may be mentioned that with the arrangement of the antifriction bearings 10, the circumferential surfaces of rotors 8 or 8 or holding tubes 6, 6 should be hardened and ground as it is customary with race rings for antifriction bearings.

As Will be evident from the above, the present invention represents a spinning or twisting spindle which is further improved over the spindle according to my above mentioned Patent No 3,120,094 while retaining the advantages thereof. In particular, the present invention permits the arrangement of the drive at a more favorable location. In view of the design according to the present invention with one rotor, it is possible to locate the drive below the spindle rail so that more space will be available above the spindle rail which space can be used either for lengthening the spindle sleeve or for shortening the distance between the spindle rail and the pig tail. Moreover, the rotor permits the employment of various types of drives which could not or only with great diiculties be employed above the spindle rail.

It is, of course, to be understood that the present invention is, by no means, limited to the particular arrangement shown in the drawings but also comprises any modifications within the scope of the appended claims. Thus, instead of employing the antifriction bearings 10, ordinary ball bearings could be used the race rings of which lare mounted on the rotor 8 or 8 or in the holding tube 6 or 6'.

Furthermore, it would be possible to lconnect rotor 8 with a hollow drive shaft of an electric motor for the individual drive of a spindle, or the drive shaft could be used at the same time as rotor 8 in Which instance the electric motor would be connected to the 'bottom side of spindle rail 1. With such a design the shank rod 18 would extend through the entire electric motor and would below the same be connected with the adjusting rail 53.

What I claim is:

1. A textile spindle arrangement especially for spinning and ytwisting spindles, which includes: a first spindle shank member, supporting means for supporting said spindle shank member, first rotor means mounted on said first shank member for supporting the upper end portion of a spindle sleeve, a second spindle shank member substantially coaxially surrounding a portion of said rst shank member and including second rotor means connected to said second shank member for supporting the lower end portion of a spindle sleeve, and bearing means rotatably journalling said second shank member on the outer peripheral surface thereof and independently of said first shank member while holding said second shank member substantially coaxial with regard to said first shank member.

2. A textile spindle arrangement especially for spinning and twisting spindles, which includes: a spindle rail, a rst spindle shank member extending through said spindle rail, means for supporting said iirst shank member, first rotor means mounted on said first shank member for supporting the upper end portion of a spindle sleeve, a tubular holding member connected to said spindle rail and surrounding a portion of said rst shank member in radially spaced relationship thereto, a tubular shaped second spindle shank member interposed between said holding member and said first shank member and including second rotor means for supporting the lower end portion of a spindle sleeve, said second shank member extending below said spindle rail, and bearing means interposed between said holding member and said second shank member for rotatably journalling the latter independently of said first shank member and holding said second shank member substantially coaxial with regard to said first shank member.

3. An arrangement according to claim 2, in which that portion of said second shank member which extends below said spindle rail is provided withmeans for rotating said second shank member.

4. A textile spindle arrangement especially for spinning and twisting spindles, which includes: a box-shaped spindle rail having a 'bottom portion and a ceiling portion arranged above said bottom portion in spaced relationship thereto, a first shank member extending through said spindle rail, supporting means for supporting said first shank member, first rotor means supported by said first shank member for supporting the upper end portion of a spindle sleeve, a tubular holding member having one end portion supported by said bottom portion and having its other end portion extending through said ceiling portion, said holding member surrounding said rst shank member in radially spaced relationship thereto, a tubular second shank member interposed 'between said holding member and said first shank member and partially located within said box-shaped spindle rail and partially extending above said ceiling portion, bearing means interposed between said holding member and said second shank member for rotatably journalling the latter independently of said first shank member and holding said second shank member substantially coaxially with regard to said rst shank member, said second shank member having that portion thereof which is arranged within said spindle rail provided with peripheral worm teeth, said holding member being provided with passage means Within the range of said worm teeth, and gear means extending throu-gh said passage means and meshing with said Worm teeth for rotating said second shank member, said second shank member including second rotor means arranged above said spindle rail for supporting the lower end of a Y spindle sleeve.

5. An arrangement according to claim 4, in which said second rotor means comprises an inverted cup-shaped portion overlapping a part of that end portion of said tubular holding member which extends a'bove said spindle rail for preventing the entry of impurities between said holding member and the outer peripheral surface of said second shank member.

6. A textile spindle arrangement especially for spinning and twisting spindles, which includes: a box-shaped spindle rail having a bottom portion and a ceiling portion arranged above said bottom portion in spaced relationship thereto, a first shank member extending through said spindle rail, supporting means for supporting said first shank member, first rotor means supported by said rst shank member for supporting the upper end portion of a spindle sleeve, holding means comprising a first annular member mounted in said bottom portion and a second annular member coaxially arranged with regard to said first annular member and mounted in said ceiling portion, each of said annular members substantially coaxially surrounding said first shank member in radially spaced relationship thereto, a tubular second shank member interposed between said holding member and said rst shank member and partially located within said box-shapedspindle rail and partially extending above said ceiling portion, bearing means respectively arranged between each of said annular members and the respective adjacent peripheral portion of said second shank member for rotatably journalling the latter independently of said rst shank member and holding said second shank member substantially coaxially with regard to said rst shank member, and driving means arranged below said ceiling portion and in driving engagement with the peripheral surface of said second shank member for rotating the same, said second shank member having that portion thereof which extends above said ceiling portion provided with second rotor means for supporting the lower end of a spindle sleeve.

7. An arrangement according to claim 6, in which said rst shank member comprises two telescopically interengaging sections adjustable relative to each other for carrying the total length of said rst shank member.

References Cited by the Examiner FRANK I. COHEN, Primary Examiner.

D, E. VVATKINS, Assistant Examiner. 

1. A TEXTILE SPINDLE ARRANGEMENT ESPECIALLY FOR SPINNING AND TWISTING SPINDLES, WHICH INCLUDES: A FIRST SPINDLE SHANK MEMBER, SUPPORTING MEANS FOR SUPPORTING SAID SPINDLE SHANK MEMBER, FIRST ROTOR MEANS MOUNTED ON SAID FIRST SHANK MEMBER FOR SUPPORTING THE UPPER END PORTION OF A SPINDLE SLEEVE, A SECOND SPINDLE SHANK MEMBER SUBSTANTIALLY COAXIALLY SURROUNDING A PORTION OF SAID FIRST SHANK MEMBER AND INCLUDING SECOND ROTOR MEANS CONNECTED TO SAID SECOND SHANK MEMBER FOR SUPPORTING THE LOWER END PORTION OF A SPINDLE SLEEVE, AND BEARING MEANS ROTATABLY JOURNALLING SAID SECOND SHANK MEMBER ON THE OUTER PERIPHERAL SURFACE THEREOF AND INDEPENDENTLY OF SAID FIRST SHANK MEMBER WHILE HOLDING SAID SECOND SHANK MEMBER SUBSTANTIALLY COAXIAL WITH REGARD TO SAID FIRST SHANK MEMBER. 